Portal Single Player

Talk about the game, custom maps, how to get the achievements and beat the challenge maps, and anything related to Portal 1. Caution: Spoilers abound!

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Easter Egg - DEBUNKED (Spoilers!)
by msleeper · Oct 19, 2007
20 Replies · 9,963 Views
Last post by youme
Jan 27, 2008
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Valve should Balkanize the challenge map Achievements
by Crooked Paul · Oct 23, 2007
16 Replies · 7,869 Views
Last post by Hyakkidouran
Jan 24, 2008
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NEW BUG Discovery or whatever you want to call it(Glitch)!!
by sKoToSa · Jan 17, 2008
9 Replies · 3,721 Views
Last post by sKoToSa
Jan 17, 2008
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Bug discovered
by VolumetricSteve · Dec 17, 2007
5 Replies · 2,701 Views
Last post by DeviMon
Jan 09, 2008
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Portal bug how to transport items from chamber 16 to 17
by DeviMon · Jan 09, 2008
0 Replies · 1,658 Views
No replies
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screenshot from discord_23
by iamafractal · Jan 01, 2008
6 Replies · 3,153 Views
Last post by iamafractal
Jan 01, 2008
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Unlimited cubes Test Chamber 13
by krikkit · Dec 23, 2007
5 Replies · 3,206 Views
Last post by krikkit
Dec 23, 2007
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No Story by Theprogram00
by msleeper · Dec 17, 2007
4 Replies · 2,925 Views
Last post by msleeper
Dec 21, 2007
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Speed run 17:50 completion
by Kingpin · Dec 10, 2007
0 Replies · 1,848 Views
No replies
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VG Cats does it AGAIN!
by espen180 · Dec 08, 2007
3 Replies · 2,504 Views
Last post by Hober
Dec 08, 2007
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Challenge 17 with NO Portals
by DiddyKong42 · Oct 20, 2007
10 Replies · 5,900 Views
Last post by volt
Dec 08, 2007
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Collectors Edition
by espen180 · Oct 27, 2007
12 Replies · 6,295 Views
Last post by Wroth
Dec 05, 2007
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Glados killed with turret
by Omgee · Dec 02, 2007
7 Replies · 3,639 Views
Last post by Wroth
Dec 05, 2007
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Timeline for Portal? [SPOILERS]
by f0rkz · Oct 14, 2007
59 Replies · 24,008 Views
Last post by MrTwoVideoCards
Dec 01, 2007
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Creative thinking... (Spoiler)
by Robinson · Oct 15, 2007
34 Replies · 12,923 Views
Last post by MrTwoVideoCards
Dec 01, 2007
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fastest times
by mikebolt · Oct 20, 2007
14 Replies · 6,913 Views
Last post by Player1
Dec 01, 2007
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Aperture Discord/Test Chamber 23 by Korjagun
by MrTwoVideoCards · Nov 30, 2007
0 Replies · 2,355 Views
No replies
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Logic Portals -Chamber 00 to 03 by Hurricaaane
by MrTwoVideoCards · Nov 27, 2007
11 Replies · 7,370 Views
Last post by MrTwoVideoCards
Nov 29, 2007
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Final Boss Speed Run
by Wroth · Oct 31, 2007
11 Replies · 5,890 Views
Last post by Wroth
Nov 22, 2007
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Portal - Only 20 minutes long
by espen180 · Nov 11, 2007
2 Replies · 2,222 Views
Last post by Yusayoh
Nov 11, 2007